JPWO2021185670A5

JPWO2021185670A5 -

Info

Publication number: JPWO2021185670A5
Application number: JP2022556134A
Authority: JP
Publication date: 2024-03-15

Claims

A linear lighting device having a length, a width, and a longitudinal axis, the aspect ratio of the length to the width being at least 2, the linear lighting device comprising:
a cavity extending along the longitudinal axis, the cavity being defined by an inner surface configured to reflect light impinging on the inner surface of the cavity, the cavity being defined by an inner surface configured to reflect light impinging on the inner surface of the cavity; a cavity having an opening allowing exit;
an optical module disposed within or at the opening of the cavity, the optical module being configured to transmit light impinging on a surface of the optical module through the optical module; light is emitted from the linear lighting device, an optical module;
a first light disposed successively along the longitudinal axis of the linear illumination device and located within the cavity and impinging on the surface of the optical module without first impinging on the inner surface of the cavity; a plurality of light emitting elements configured to emit a second light impinging on the inner surface of the
including;
The optical module collimates the first light in a cross-section perpendicular to the longitudinal axis of the linear illumination device, and the optical a linear collimator configured to produce collimated light to increase the degree of collimation of light in the cross section transmitted from the module;
At least one of the plurality of light emitting elements is arranged such that less than 3% of the total luminous flux of the first light emitted by the plurality of light emitting elements is within a wavelength range of 400 to 470 nm. ,
At least one of the inner surface of the cavity, the plurality of light emitting elements, and the optical module is configured such that the light emitted from the inner surface of the cavity is reflected by the inner surface of the cavity, and then hits the surface of the optical module and is transmitted from the optical module. A linear lighting device, wherein the second light is configured such that at least 3% of the total luminous flux is within the wavelength range 400-470 nm.

At least one of the plurality of light emitting elements is arranged such that the second light emitted by the plurality of light emitting elements has at least 3% of the total luminous flux within a wavelength range of 400 to 470 nm. 2. The linear lighting device of claim 1.

2. The inner surface of the cavity has a reflectance of 80% or more for light within a wavelength range of 400-470 nm and less than 80% for light at other wavelengths. linear lighting device.

The inner surface of the cavity has a reflectance of 80% or more for light within a wavelength range of 400 to 470 nm, and a reflectance of less than 80% for light at other wavelengths. by having at least 3% of the total luminous flux reflected by the inner surface of the cavity and then hitting the surface of the optical module and transmitted through the optical module, such that at least 3% of the total luminous flux is within a wavelength range of 400-470 nm. 4. The linear lighting device of claim 3 , configured to provide a certain amount of light.

5. A linear illumination device according to any one of claims 1 to 4 , wherein the linear collimator is a linear lens.

The linear lighting device is
arranged in succession along the longitudinal axis of the linear illumination device and arranged within the cavity to emit a third light that impinges on the surface of the optical module without first impinging on the inner surface of the cavity; comprising a plurality of light emitting elements;
including;
The optical module collimates the third light in the cross-section, and the third light in the cross-section transmitted from the optical module is compared to the third light before being transmitted through the optical module. configured to generate collimated light to increase the degree of collimation of the light;
The optical module and at least one of the plurality of light emitting elements configured to emit the third light are arranged such that the third light transmitted from the optical module is connected to the third light transmitted from the optical module. 5. A linear illumination device according to any preceding claim, configured to have a direction different from the direction of the first light.

The linear lighting device is
each coupled to a plurality of light emitting elements configured to emit the first light and a plurality of light emitting elements configured to emit the third light, and configured to be selectively turned on or off; 7. The linear lighting device of claim 6 , comprising a control unit.

5. A linear lighting device according to any one of claims 1 to 4 , wherein the cross section of the cavity has a rectangular or curved shape.

The inner surface is
having a first inner surface and a second inner surface;
The first inner surface is such that the second light reflected by the first inner surface of the cavity and then impinging on the surface of the optical module and transmitted through the optical module has at least 3% of the total luminous flux at a wavelength. configured to emit light within a range of 400 to 470 nm,
The second inner surface of the cavity has a reflectance for light in a wavelength range of 400 to 470 nm that is higher than a reflectance of the first inner surface to light in a wavelength range of 400 to 470 nm, and The second inner surface of the cavity has at least one reflectance for light within a wavelength range of 470 to 650 nm that is lower than the reflectance of the first inner surface for light within a wavelength range of 470 to 650 nm. Then, the second light that hits the surface of the optical module and passes through the optical module is reflected by the first inner surface, such that a proportion of the total luminous flux within the wavelength range of 400 to 470 nm is reflected by the first inner surface. The linear lighting device according to any one of claims 1 to 4 , configured to emit a higher proportion of light within the wavelength range 400 to 470 nm of the total luminous flux of light.

The inner surface includes the passive reflective display device such that the second light impinges on a surface of the passive reflective display device, and the surface of the passive reflective display device includes a plurality of passive reflective display device sections. including,
The linear lighting device includes a control unit coupled to the passive reflective display device and configured to provide a voltage to each passive reflective display device section;
The passive reflective display device section is in a first state when a first voltage is applied to the passive reflective display device section by the control unit, and the passive reflective display device section is in a first state when a second voltage is applied to the passive reflective display device section. in a second state when applied by the control unit to the passive reflective display device section, the first voltage being different from the second voltage;
The passive reflective display device section in the first state is reflected by the passive reflective display device section in the first state, and then the second reflective display device section hits the surface of the optical module and is transmitted through the optical module. The light is configured such that at least 3% of the total luminous flux is within a wavelength range of 400 to 470 nm,
The passive reflective display device section in the second state is configured such that the passive reflective display device section in the second state is sensitive to light within a wavelength range of 400-470 nm of the passive reflective display device section in the first state. a reflectance for light within a wavelength range of 400 to 470 nm that is higher than a reflectance of the passive reflective display device section in the first state, and a reflectance of 470 to 650 nm that is lower than a reflectance of the passive reflective display device section in the first state to light within a wavelength range of 470 to 650 nm; at least one of the reflectivity for light reflected by the passively reflective display device section in the second state and then impinging on the surface of the optical module and transmitted through the optical module. wherein a proportion of the total luminous flux of the second light reflected by the passive reflective display device section in the first state is within the wavelength range 400-470 nm; 5. A linear lighting device according to any one of claims 1 to 4 , configured to provide a higher percentage of light.

The linear lighting device is
the light-transmissive layer disposed within the cavity at a distance from the inner surface such that the light-transmissive layer and the inner surface surround a space for containing a fluid;
A first fluid and a second fluid provided in the space, wherein the first fluid and the second fluid have reflectance of light hitting the first fluid and the second fluid, respectively. , a first fluid and a second fluid having different optical properties with respect to at least one of absorbance, transmittance, or scattering;
including;
The linear illumination device according to any one of claims 1 to 4 , wherein the light transmission layer is arranged such that the second light impinges on at least one of the first fluid and the second fluid.

5. A linear lighting device according to any one of claims 1 to 4 , wherein the linear lighting device is arranged on a wall or a ceiling.

A lamp, luminaire or lighting system comprising a linear lighting device according to any one of claims 1 to 4 .